<template>
  <div>
    <div class="search">
      <input
        v-model="keyword"
        class="search-input"
        type="text"
        placeholder="输入城市名或拼音"
      >
    </div>
    <div
      class="search-content"
      ref="search"
      v-show="keyword"
    >
      <ul>
        <li
          class="search-item border-bottom"
          v-for="item in list"
          :key="item.id"
          @click="handleCityClick(item.name)"
        >{{item.name}}</li>
        <li class="search-item border-bottom" v-show="hasNoData">没有找到匹配数据</li>
      </ul>
    </div>
  </div>
</template>

<script>
    import Bscroll from 'better-scroll'
    import {mapMutations} from 'vuex'
    export default {
        name:'CitySearch',
        props:{
          cities: Object
        },
        data(){
            return {
              keyword:'',
              list:[],
              timer:null
            }
        },
        computed:{
            hasNoData(){
                return !this.list.length
            }
        },
        mounted(){
          this.scroll = new Bscroll(this.$refs.search)
        },
        watch:{
          keyword() {
              if(this.timer){
                  clearTimeout(this.timer)
              }
              if(!this.keyword){
                  this.list = []
                  return
              }
              this.timer = setTimeout(()=>{
                  const result = []
                  for (let i in this.cities){
                      this.cities[i].forEach((value)=>{
                          if(value.spell.indexOf(this.keyword)>-1 || value.name.indexOf(this.keyword) > -1){
                              result.push(value)
                          }
                      })
                  }
                  this.list = result
              },100)
          }
        },
        methods: {
          handleCityClick(city){
//            this.$store.commit('changeCity',city)
            this.changeCity(city)
            this.$router.push('/')
          },
          ...mapMutations(['changeCity'])
        }
    }
</script>

<style  lang="stylus" scoped>
  @import '~styles/varibles.styl'
  .search
    height:.72rem
    background: $bgColor
    padding:0 .1rem
    .search-input
      height: .62rem
      width:100%
      box-sizing: border-box
      line-height .62rem
      padding:0 .1rem
      text-align:center
      border-radius: .1rem
      color: #666
  .search-content
    z-index:1
    position: absolute
    overflow: hidden
    top: 1.58rem
    left:0
    right:0
    bottom:0
    background: #eee
    .search-item
      line-height: .62rem
      padding-left: .2rem
      background: #ffffff
      color: #666
</style>
